Thermochromic thermometer



FIG. 1 is a front perspective view of a thermochromic thermometer showing my new design;

FIG. 2 is a rear elevational view thereof; and

FIG. 3 is a front elevational view of another form of my new design of FIGS. 1 and 2, the rear being identical to FIG. 2. 

The ornamental design for a thermochromic thermometer, substantially as shown and described. 